There is a third and more eccentric kind of religion, which, giving men two legislations, two chiefs, two countries, imposes upon them contradictory duties, and forbids them from being at the same time devotees and patriots. Such is the religion of the Llamas; such is the religion of the Japanese; such is Roman Christianity.
Politically considered, all these kinds have their defects. The third is so manifestly bad that one need waste no time upon it. That which breaks social unity is worthless. The second is good, in that it inculcates patriotism, makes it a religious duty to serve the state. But it is founded on error and falsehood, and renders its adherents superstitious, intolerant, and cruel. The first, the religion of man, or Christianity, is a sublime and true religion by which men, children of one god, acknowledge each other as brethren, and the society that unites them does not dissolve even with death. But Christianity of itself is not calculated to strengthen a nation; it teaches submissiveness, and discourages patriotic pride.
Now it is of prime importance to the state that each citizen should have a religion which teaches him to love his duty; but the state is only concerned with religion so far as it teaches morality and the duty of man towards his neighbour. Beyond that, the sovereign has nothing to do with a man's religious opinions.
There should, therefore, be a purely civil profession of faith, the articles of which are to be fixed by the sovereign, not precisely as religious dogmas, but as sentiments of sociability, without which it is impossible for a man to be a good citizen or a faithful subject. Without being able to compel anybody to believe the articles, the sovereign could banish from the state anybody who did not believe them; it can banish him, not as impious, but as unsociable, as incapable of sincerely loving laws and justice. If anyone, having publicly accepted these dogmas, should act as if he did not believe them, he should be punished with death; he would have committed the greatest of crimes, that of lying against the laws.
The dogmas of the civil religion should be simple, few, precise, without explanations or commentaries. The existence of a powerful, wise, benevolent, provident, and bountiful Deity, the life to come, the happiness of the just, the punishment of the wicked, the sanctity of the social contract, and the laws; these are the positive dogmas. As for negative dogmas, I limit them to one; I would have every good citizen forswear intolerance in religion.
After having laid down the true principles of political rights, and sought to place the state upon its proper basis, it should remain to support it by its external relations—international law, commerce, and so on. But this forms a new aim too vast for my limited view; I have had to fix my eyes on objects nearer at hand.